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Enhancing the efficiency of photovoltaic solar cell through cnt

Author:

Priti Shukla, Bharat Gupta, Kruti Shukla and Satakshi Tiwari

Subject Area:

Physical Sciences and Engineering

Abstract:

Carbon nano materials are superb materials for photovoltaic solar cells: they are Earth-abundant, possess high optical absorption, and better-quality thermal and photostability. Carbon, one of the few elements recognized since antiquity, holds outstanding potential as a material for solar cells. It’s abundant in the Earth’s crust (~0.2 wt. %), it can be found in Nature in its fundamental form as graphite, diamond and coal, and it is extensively used technologically with a production on documentation among other elements of 9 Gt/year. Nanostructured carbon allotropes have been intensively investigate in the history, including single–walled carbon nanotubes (SWCNT), fullerenes, grapheneand their chemical derivative. These materials grasp record values for physical properties essential for PV such as carrier mobility, mechanical strength, thermal conductivity and optical absorption, and are attractive for PV as they can be dissolve in organic solvents to deposit thin solar cell active layers from solution. Extra carbon allotropes such as amorphous carbon, nanodiamonds and graphene can be deposit in thin film form on flexible substrates using chemical vapor deposition.